#include <fstream>

using namespace std;

ifstream fin("secv2.in");
ofstream fout("secv2.out");

const int N=50001;
int v[N],n,k,s,smax,st=1,dr,a[N];

int main()
{
    fin>>n>>k;
    for(int i=1;i<=k;i++)
    {
        fin>>v[i];
        a[i]=v[i]+a[i-1];
    }
    s=smax=a[k];
    dr=k;
    for(int i=k+1;i<=n;i++)
    {
        fin>>v[i];
        a[i]=a[i-1]+v[i];
        if(a[i]-a[i-k]>s+v[i])
        {
            s=a[i]-a[i-k];
            if(s>smax)
            {
                smax=s;
                st=i-k+1;
                dr=i;
            }
        }
        else
        {
            s+=v[i];
            if(s>smax)
            {
                smax=s;
                dr=i;
            }
        }
    }
    fout<<st<<" "<<dr<<" "<<smax;
    return 0;
}